Never knew a SBC to be an interference engine. You are the first to mention it. Sorry but you are going to have to provide some other proof of that other than your word.

 

Also wondering...

 

i can usally tell its good when i take it out of the box from summit racing. being cheap always costs more......

 

timing kits should be part of a 100k tuneup

 

Go with a small block double roller chain, its 75 bucks and is much nicer than the stock chain. You allready have the E-water pump so why not.

 

Where do some people get this crap from????

In 40 plus years have been around several that have either jump time, broke a tooth or broke a chain. Never seen damage to the bottom or the top on a stock engine.

I don't know, maybe it's the water. LOL

 

That's comforting to know. I bought a new stock timing set, but didn't bother putting it on. And I've already changed the water pump & opti seals in my timing cover, so I don't really want to put it on now. My car has about 100K miles on it. It's nice to know that if the original timing set fails, it's not going to ruin my engine.

 

where do you get your crap from, the lt1 IS an interference engine why do you think its not? dont get lt1 confused with other chevy 350's that had 78 cc chambers because those are different animals, small chambers, flat top pistons you better believe that engine will chew up some valves if they remain open when the chain breaks

have you ever replaced the valve springs on an lt1 using the TDC method, those valves dont drop very far before the piston keeps them from going any further

 

That's weird, no chain I have put on my car has had any slack in it really... my stock chain with 120K on it was extremely tight, which I thought was odd.

 

It's time to lock this thread. The person has their answer.

If anyone wants to debate interference or not, they need to start a new thread.

 

I just bought a new stock GM chain, and gears a couple of weeks ago and installed them. The new chain had a fair amount of deflection in it. I really couldn't tell a whole lot of difference from the 150k mile original chain it replaced.